Ergonomic keyboard



FIG. 1 is a top right perspective view of the ergonomic keyboard.

FIG. 2 is a top view thereof.

FIG. 3 is a bottom view thereof.

FIG. 4 is a left side view thereof.

FIG. 5 is a right-side view thereof.

FIG. 6 is a rear view thereof.

FIG. 7 is a front view thereof.

FIG. 8 is a bottom left perspective view thereof; and,

FIG. 9 is a bottom front perspective view thereof.

The broken lines illustrate portions of the article, whereas thedot-dash broken lines represent a boundary of the claimed design. Noneof the broken lines form any part of the claimed design.

CLAIM The ornamental design for an ergonomic keyboard, as shown anddescribed.